/* Web de una app de Relative Developers.
   Misma base que la web de la marca y DNAinvent (tipografía, tinta y grises, bordes finos).
   El color de la app (--accent y --accent-bg) se define en templates/base.html desde web/config.py. */

:root {
  --bg: #E8EDEF;
  --surface: #F8FAFB;
  --ink: #16232D;
  --muted: #566874;
  --line: #C7D1D6;
  --focus: #2B62C2;

  --blue: #1D4EF5;
  --pink: #D0177A;
  --blue-bg: #DCE4FD;
  --pink-bg: #F8DCEA;


  --sans: "Atkinson Hyperlegible", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --radius: 6px;
  --wrap: 72rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131E26;
    --surface: #1A2833;
    --ink: #E2E9ED;
    --muted: #9AABB5;
    --line: #2F414D;
    --focus: #7EA6F0;

    --blue: #8099FF;
    --pink: #FF6FB4;
    --blue-bg: #1E2A57;
    --pink-bg: #48203A;

    color-scheme: dark;
  }
}


* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1rem/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
main:focus { outline: none; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.muted { color: var(--muted); }

.skip {
  position: absolute; left: 1rem; top: -3rem; z-index: 10;
  padding: 0.5rem 0.9rem; background: var(--ink); color: var(--surface);
  border-radius: var(--radius); text-decoration: none;
}
.skip:focus { top: 1rem; }

/* ---------- Cabecera ---------- */

.topbar {
  position: sticky; top: 0; z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  display: flex; align-items: center; gap: 1.25rem;
  max-width: var(--wrap); margin: 0 auto; padding: 0.7rem var(--gutter);
}

.brand { display: flex; align-items: center; gap: 0.55rem; color: inherit; text-decoration: none; flex-shrink: 0; }
.brand-logo { display: block; width: 40px; height: 40px; }
.wordmark { font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; line-height: 1.1; }
.wordmark span { color: var(--muted); font-weight: 400; }

.site-nav { display: flex; align-items: center; gap: 1rem; margin-left: auto; }
.nav-list { display: flex; flex-wrap: wrap; gap: 0.15rem; list-style: none; margin: 0; padding: 0; }
.nav-list a {
  display: block; padding: 0.35rem 0.6rem;
  color: var(--ink); text-decoration: none; border-radius: var(--radius);
  border-bottom: 2px solid transparent;
}
.nav-list a:hover { background: var(--surface); }
.nav-list a[aria-current="page"] { font-weight: 700; border-bottom-color: var(--ink); border-radius: var(--radius) var(--radius) 0 0; }

.lang-switch {
  display: flex; list-style: none; margin: 0; padding: 0.15rem;
  border: 1px solid var(--line); border-radius: var(--radius);
  font-family: var(--mono); font-size: 0.8rem;
}
.lang-switch a { display: block; padding: 0.15rem 0.45rem; color: var(--muted); text-decoration: none; border-radius: 4px; }
.lang-switch a:hover { color: var(--ink); }
.lang-switch a[aria-current="true"] { background: var(--ink); color: var(--surface); }



/* ---------- Bloques comunes ---------- */

.section { padding: clamp(2.5rem, 6vw, 4.5rem) 0; }
.section-alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-title { margin: 0 0 0.4rem; font-size: clamp(1.6rem, 3.5vw, 2.1rem); line-height: 1.2; letter-spacing: -0.015em; }
.section-title.small { font-size: 1.3rem; margin-bottom: 1.1rem; }
.section-intro { margin: 0 0 2rem; color: var(--muted); max-width: 60ch; font-size: 1.05rem; }

.eyebrow { margin: 0 0 0.3rem; font-family: var(--mono); font-size: 0.8rem; color: var(--muted); letter-spacing: 0.02em; }
.lead { font-size: clamp(1.15rem, 2.2vw, 1.35rem); line-height: 1.5; max-width: 52ch; margin: 0 0 2.25rem; }

.actions { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 1.5rem 0 0; }
.button {
  display: inline-block; padding: 0.6rem 1.15rem;
  border-radius: var(--radius); font-weight: 700; text-decoration: none; line-height: 1.3;
}

.button.secondary { border: 1px solid var(--line); color: var(--ink); font-weight: 400; background: var(--surface); }
.button.secondary:hover { border-color: var(--muted); }
.button.primary { background: var(--accent); border: 1px solid var(--accent); color: #fff; }
.button.primary:hover { background: color-mix(in srgb, var(--accent) 85%, var(--ink)); }
@media (prefers-color-scheme: dark) { .button.primary { color: var(--bg); } }
@media (prefers-color-scheme: dark) { .button.primary { color: var(--bg); } }

.badges { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0; }
.badge {
  display: inline-block; padding: 0.1rem 0.5rem;
  border: 1px solid var(--line); border-radius: 999px;
  font-size: 0.8rem; color: var(--muted); background: var(--surface); white-space: nowrap;
}
.badge.status-available { border-color: var(--accent); color: var(--accent); }
.badge.status-coming_soon { background: var(--accent-bg); border-color: transparent; color: var(--ink); font-weight: 700; }
.badge.status-development { border-style: dashed; }
.badge.version { font-family: var(--mono); }

/* ---------- Portada ---------- */

.hero { padding: clamp(3rem, 9vw, 6.5rem) 0 clamp(2.5rem, 7vw, 5rem); }
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 2rem; align-items: center; }
.hero-title {
  margin: 0; font-size: clamp(3rem, 9vw, 5.75rem); line-height: 0.98; letter-spacing: -0.035em;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(100deg, var(--blue), var(--pink));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-subtitle { margin: 1.1rem 0 0; font-size: clamp(1.2rem, 2.6vw, 1.55rem); line-height: 1.35; max-width: 26ch; }
.hero-intro { margin: 1rem 0 0; color: var(--muted); max-width: 46ch; font-size: 1.05rem; }

.hero-art { position: relative; display: grid; place-items: center; }
.hero-art::before {
  content: ""; position: absolute; inset: 8%;
  background:
    radial-gradient(circle at 30% 35%, color-mix(in srgb, var(--blue) 38%, transparent), transparent 62%),
    radial-gradient(circle at 72% 68%, color-mix(in srgb, var(--pink) 32%, transparent), transparent 60%);
  filter: blur(28px); border-radius: 50%;
}
.hero-art img { position: relative; width: min(100%, 320px); animation: float 7s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-10px) rotate(-1.5deg); } }
@media (prefers-reduced-motion: reduce) { .hero-art img { animation: none; } }

@media (max-width: 46rem) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { order: -1; justify-items: start; }
  .hero-art img { width: 120px; }
  .hero-art::before { inset: auto; width: 160px; height: 160px; left: -20px; }
}

/* Tarjetas de apps */
.app-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; list-style: none; margin: 0; padding: 0; }
.app-grid.compact { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 52rem) { .app-grid, .app-grid.compact { grid-template-columns: 1fr; } }

.app-card-link {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 1rem; align-items: start;
  height: 100%; padding: 1.25rem 1.25rem 1.25rem 1.1rem;
  background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--accent);
  border-radius: var(--radius); color: inherit; text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.app-card-link:hover { transform: translateY(-2px); box-shadow: 0 6px 18px -10px color-mix(in srgb, var(--accent) 70%, transparent); border-color: var(--accent); }
@media (prefers-reduced-motion: reduce) { .app-card-link { transition: none; } .app-card-link:hover { transform: none; } }
.app-icon { width: 64px; height: 64px; display: block; }
.app-card-body { display: grid; gap: 0.3rem; }
.app-card-name { font-weight: 700; font-size: 1.25rem; line-height: 1.2; }
.app-card-tagline { color: var(--muted); }
.app-card-body .badges { margin-top: 0.35rem; }
.app-card-arrow { color: var(--accent); font-size: 1.25rem; transition: transform 0.15s ease; }
.app-card-link:hover .app-card-arrow { transform: translateX(3px); }
.compact .app-icon { width: 48px; height: 48px; }
.compact .app-card-tagline { font-size: 0.92rem; }
.compact .badges { display: none; }

/* Valores */
.values { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; list-style: none; margin: 1.5rem 0 0; padding: 0; }
.values li { border-top: 2px solid var(--ink); padding-top: 0.9rem; }
.values li:nth-child(1) { border-top-color: var(--blue); }
.values li:nth-child(2) { border-top-color: var(--pink); }
.values h3 { margin: 0 0 0.3rem; font-size: 1.1rem; }
.values p { margin: 0; color: var(--muted); }
@media (max-width: 46rem) { .values { grid-template-columns: 1fr; gap: 1.25rem; } }

/* ---------- Página de cada app ---------- */

.app-hero {
  padding: clamp(2.5rem, 7vw, 4.5rem) 0;
  background: linear-gradient(180deg, var(--accent-bg), var(--bg));
  border-bottom: 1px solid var(--line);
}
.app-hero-inner { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: clamp(1.25rem, 4vw, 2.5rem); align-items: center; }
.app-hero-icon { width: clamp(88px, 14vw, 140px); height: auto; }
.app-title { margin: 0; font-size: clamp(2.4rem, 6vw, 3.75rem); line-height: 1.05; letter-spacing: -0.03em; }
.app-tagline { margin: 0.5rem 0 1rem; font-size: clamp(1.1rem, 2.4vw, 1.35rem); max-width: 40ch; }
@media (max-width: 34rem) { .app-hero-inner { grid-template-columns: 1fr; } }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1rem; list-style: none; margin: 0 0 2.5rem; padding: 0; }
.feature { padding: 1.1rem 1.2rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.feature h2 { margin: 0 0 0.35rem; font-size: 1.05rem; display: flex; gap: 0.5rem; align-items: baseline; }
.feature h2::before { content: ""; flex: none; width: 0.55rem; height: 0.55rem; border-radius: 2px; background: var(--accent); transform: translateY(-0.05rem); }
.feature p { margin: 0; color: var(--muted); }

.checklist { list-style: none; margin: 0 0 2.5rem; padding: 0; display: grid; gap: 0.45rem; }
.checklist li { padding-left: 1.6rem; position: relative; }
.checklist li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }

.status-box { padding: 1.1rem 1.25rem; border-left: 4px solid var(--accent); background: var(--accent-bg); border-radius: 0 var(--radius) var(--radius) 0; max-width: 46rem; }
.status-box h2 { margin: 0 0 0.25rem; font-size: 1.05rem; }
.status-box p { margin: 0.25rem 0 0; }

/* ---------- Páginas de texto ---------- */

.page-head { padding: clamp(2.5rem, 7vw, 4.5rem) 0 0; }
.page-head h1 { margin: 0; font-size: clamp(2.3rem, 6vw, 3.5rem); line-height: 1.05; letter-spacing: -0.03em; }
.page-lead {
  margin: 0.4rem 0 0; font-size: clamp(1.3rem, 3vw, 1.8rem); font-weight: 700;
  background: linear-gradient(100deg, var(--blue), var(--pink));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  width: fit-content;
}
.page-intro { margin: 0.75rem 0 0; color: var(--muted); max-width: 56ch; font-size: 1.05rem; }

.prose { max-width: 46rem; margin-left: 0; }
.wrap.prose { margin: 0 auto 0 max(0px, calc((100% - var(--wrap)) / 2)); }
.prose h2 { margin: 2.25rem 0 0.5rem; font-size: 1.3rem; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { max-width: 66ch; }
.prose ul { padding-left: 1.2rem; }
.prose li { margin-bottom: 0.6rem; }

.contact-list { display: grid; gap: 0; margin: 0; max-width: 40rem; border-top: 1px solid var(--line); }
.contact-item { display: grid; grid-template-columns: 12rem minmax(0, 1fr); gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.contact-item dt { color: var(--muted); }
.contact-item dd { margin: 0; display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; font-weight: 700; }
@media (max-width: 34rem) { .contact-item { grid-template-columns: 1fr; gap: 0.2rem; } }
.copy {
  padding: 0.15rem 0.6rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); color: var(--muted); font: inherit; font-size: 0.85rem; font-weight: 400; cursor: pointer;
}
.copy { flex: none; }
.copy:hover { color: var(--ink); border-color: var(--muted); }

/* ---------- Pie ---------- */

.footer { border-top: 1px solid var(--line); padding: 2.5rem 0 1.5rem; font-size: 0.95rem; }
.footer-inner {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1.4fr) minmax(0, 0.8fr); gap: 2rem;
  max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter);
}
.footer p { margin: 0 0 0.4rem; }
.footer-name { font-weight: 700; }
.footer-mail { color: var(--ink); }
.footer-title { font-family: var(--mono); font-size: 0.8rem; color: var(--muted); }
.footer-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.3rem; }
.footer-list a { color: var(--ink); text-decoration: none; overflow-wrap: anywhere; }
.footer-list a:hover { text-decoration: underline; }
.footer-legal { max-width: var(--wrap); margin: 2rem auto 0 !important; padding: 1rem var(--gutter) 0; color: var(--muted); font-size: 0.85rem; }
@media (max-width: 52rem) { .footer-inner { grid-template-columns: 1fr 1fr; } .footer-brand { grid-column: 1 / -1; } }

/* ---------- Web de la app ---------- */

.topbar { top: 0; }
@media (max-width: 46rem) {
  .topbar-inner { flex-wrap: wrap; row-gap: 0.4rem; }
  .site-nav { margin-left: 0; flex-basis: 100%; justify-content: space-between; flex-wrap: wrap; }
  .nav-list a { padding: 0.3rem 0.5rem; }
}
.wordmark { font-size: 1.25rem; }

.app-hero-inner { grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); }
.app-hero .hero-intro { margin: 0 0 1rem; }
.app-hero .hero-art img { width: min(100%, 300px); }
.app-hero .hero-art::before {
  background:
    radial-gradient(circle at 35% 40%, color-mix(in srgb, var(--accent) 40%, transparent), transparent 62%),
    radial-gradient(circle at 70% 65%, color-mix(in srgb, var(--pink) 18%, transparent), transparent 60%);
}
@media (max-width: 46rem) {
  .app-hero-inner { grid-template-columns: 1fr; }
  .app-hero .hero-art { order: -1; justify-items: start; }
  .app-hero .hero-art img { width: 120px; }
  .app-hero .hero-art::before { inset: auto; width: 150px; height: 150px; left: -15px; }
}


.features { grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); margin-bottom: 0; }
.feature h3 { margin: 0 0 0.35rem; font-size: 1.05rem; display: flex; gap: 0.5rem; align-items: baseline; }
.feature h3::before { content: ""; flex: none; width: 0.55rem; height: 0.55rem; border-radius: 2px; background: var(--accent); transform: translateY(-0.05rem); }

.points { list-style: none; margin: 1.25rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1rem 2rem; }
.points li { padding-left: 1.75rem; position: relative; max-width: 40ch; }
.points li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 700; }
.more-link { margin: 1.5rem 0 0; }

.faq { max-width: 46rem; border-top: 1px solid var(--line); margin: 1.25rem 0 2.5rem; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 0.9rem 2rem 0.9rem 0; font-weight: 700; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0.25rem; top: 0.8rem; color: var(--accent); font-size: 1.2rem; font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 1rem; color: var(--muted); max-width: 62ch; }

.delete-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-bottom: 2.5rem; }
@media (max-width: 46rem) { .delete-options { grid-template-columns: 1fr; } }
.delete-option { padding: 1.25rem 1.4rem; background: var(--surface); border: 1px solid var(--line); border-top: 4px solid var(--accent); border-radius: var(--radius); }
.delete-option h2 { margin: 0 0 0.6rem; font-size: 1.2rem; }
.delete-option .eyebrow { font-size: 0.9rem; color: var(--accent); font-weight: 600; }
.steps { margin: 0; padding-left: 1.25rem; display: grid; gap: 0.4rem; }
.mail-preview { padding: 0.6rem 0.8rem; background: var(--bg); border-radius: var(--radius); font-family: var(--mono); font-size: 0.85rem; overflow-wrap: anywhere; }
.delete-option .actions { margin-top: 1rem; }

/* ---------- Propio de RelativeAge: calculadora ---------- */

.calc-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 2.5rem; align-items: start; }
@media (max-width: 52rem) { .calc-layout { grid-template-columns: 1fr; gap: 1.5rem; } }
.calc-form { display: flex; flex-wrap: wrap; gap: 1rem; margin: 0 0 0.75rem; }
.field { display: grid; gap: 0.3rem; flex: 1 1 11rem; }
.field > span { font-weight: 700; }
.field input {
  padding: 0.6rem 0.75rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--surface); color: var(--ink); font: inherit; font-size: 1.05rem;
}
.field input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.small { font-size: 0.9rem; }

.calc-result {
  padding: 1.25rem 1.4rem; background: var(--surface); border: 1px solid var(--line);
  border-top: 4px solid var(--accent); border-radius: var(--radius);
}
.calc-result .eyebrow { margin-bottom: 0.75rem; }
.calc-error { margin: 0 0 0.75rem; padding: 0.5rem 0.75rem; border-left: 3px solid #C2412B; background: color-mix(in srgb, #C2412B 12%, transparent); }
.counters { display: grid; grid-template-columns: repeat(auto-fill, minmax(10.5rem, 1fr)); gap: 1rem 1.5rem; margin: 0; }
.counter { display: flex; flex-direction: column-reverse; gap: 0.1rem; }
.counter dt { color: var(--muted); font-size: 0.9rem; }
.counter dd { margin: 0; font-size: clamp(1.35rem, 3vw, 1.75rem); font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.counter.live { grid-column: 1 / -1; padding-top: 0.75rem; border-top: 1px solid var(--line); }
.counter.live dd { font-size: clamp(2rem, 6vw, 3rem); color: var(--accent); }

.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.checklist li { padding-left: 1.6rem; position: relative; }
.checklist li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }

/* ---------- Botones de las tiendas ---------- */

.stores { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; margin: 0; padding: 0; list-style: none; }
.stores li { display: grid; gap: 0.35rem; justify-items: start; }
.store {
  display: inline-flex; align-items: center; gap: 0.6rem; min-width: 11.5rem;
  padding: 0.5rem 1.1rem 0.55rem; border-radius: 10px; border: 1px solid #000;
  background: #000; color: #fff; text-decoration: none; line-height: 1.1;
  transition: transform 0.15s ease;
}
.store:hover { transform: translateY(-1px); }
@media (prefers-reduced-motion: reduce) { .store { transition: none; } .store:hover { transform: none; } }
.store-text { display: grid; }
.store-text small { font-size: 0.72rem; opacity: 0.85; }
.store-text b { font-size: 1.3rem; letter-spacing: -0.01em; }
.store.is-pending { background: transparent; border: 1px dashed var(--line); color: var(--muted); cursor: default; }
.store.is-pending:hover { transform: none; }
.store-device { font-size: 0.85rem; color: var(--muted); }
@media (prefers-color-scheme: dark) { .store:not(.is-pending) { border-color: #6b7a84; } }

/* ---------- Propio de RelativeAge: demostración ---------- */

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.demo .calc-form { max-width: 34rem; }
.demo .calc-error { max-width: 34rem; }

.tabs { display: flex; gap: 0.25rem; margin: 1.5rem 0 0; border-bottom: 1px solid var(--line); overflow-x: auto; scrollbar-width: thin; }
.tabs [role="tab"] {
  flex: none; padding: 0.6rem 1rem; border: 0; border-bottom: 3px solid transparent; background: none;
  color: var(--muted); font: inherit; font-weight: 700; cursor: pointer; white-space: nowrap;
}
.tabs [role="tab"]:hover { color: var(--ink); }
.tabs [role="tab"][aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.demo .panel { padding: 1.5rem 0 0; }
.demo .panel:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }
.panel-title { margin: 0 0 1rem; font-size: 1.3rem; }
.demo h4 { margin: 1.75rem 0 0.4rem; font-size: 1.05rem; }
.demo .calc-result { max-width: 46rem; }

.how { margin: 1.5rem 0 0; max-width: 46rem; border-top: 1px solid var(--line); }
.how summary { cursor: pointer; padding: 0.75rem 0; font-weight: 700; color: var(--accent); }
.how p, .how li { color: var(--muted); max-width: 66ch; }
.how ul { padding-left: 1.2rem; }

/* Edad china */
.chinese-hero { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1.5rem; }
.big-number { margin: 0; font-size: clamp(2.6rem, 7vw, 3.6rem); font-weight: 700; color: var(--accent); line-height: 1; font-variant-numeric: tabular-nums; }
.cn-diff { margin: 0; font-weight: 700; }
.chinese-hero .small { margin: 0.2rem 0 0; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 0.75rem; margin: 1.25rem 0 0; max-width: 56rem; }
.facts > div { padding: 0.8rem 1rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.facts dt { color: var(--muted); font-size: 0.85rem; }
.facts dd { margin: 0.2rem 0 0; font-weight: 700; font-size: 1.05rem; }
.facts dd.small { font-weight: 400; font-size: 0.85rem; }

/* Reino animal */
.lead-small { font-size: 1.2rem; font-weight: 700; margin: 0 0 0.25rem; }
.pet-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1rem; max-width: 56rem; }
.pet { padding: 1rem 1.1rem; background: var(--surface); border: 1px solid var(--line); border-top: 3px solid var(--accent); border-radius: var(--radius); }
.pet p { margin: 0; }
.pet-name { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.5rem !important; }
.pet .method { margin-top: 0.75rem !important; color: var(--muted); font-size: 0.85rem; }
.pet .value { font-size: 1.35rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.sizes { display: flex; flex-wrap: wrap; gap: 0.3rem; margin: 0.35rem 0 0.4rem; }
.sizes button {
  display: grid; padding: 0.25rem 0.6rem; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--bg); color: var(--ink); font: inherit; font-size: 0.85rem; cursor: pointer; text-align: left; line-height: 1.2;
}
.sizes button small { color: var(--muted); font-size: 0.72rem; }
.sizes button[aria-checked="true"] { border-color: var(--accent); background: var(--accent-bg); font-weight: 700; }
.species { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); gap: 0.6rem; margin: 0.75rem 0 0; padding: 0; list-style: none; max-width: 56rem; }
.species li { padding: 0.7rem 0.9rem; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.species p { margin: 0; }
.sp-name i { color: var(--muted); font-size: 0.8rem; }
.sp-eq { font-weight: 700; margin-top: 0.2rem !important; }
.sp-meta { margin-top: 0.2rem !important; }
.app-more { margin: 1rem 0 0.5rem; padding-left: 0.8rem; border-left: 3px solid var(--accent); max-width: 62ch; }

/* Sistema Solar */
.segmented { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 0.2rem; background: var(--surface); }
.segmented button { padding: 0.35rem 1rem; border: 0; border-radius: 999px; background: none; color: var(--muted); font: inherit; cursor: pointer; }
.segmented button[aria-pressed="true"] { background: var(--accent); color: #fff; font-weight: 700; }
@media (prefers-color-scheme: dark) { .segmented button[aria-pressed="true"] { color: var(--bg); } }
.planets-layout { display: grid; grid-template-columns: minmax(0, 26rem) minmax(0, 1fr); gap: 1.5rem; align-items: start; margin-top: 1rem; }
@media (max-width: 52rem) { .planets-layout { grid-template-columns: 1fr; } }
.solar { margin: 0; }
.solar svg { display: block; width: 100%; height: auto; background: #0e1726; border-radius: 12px; }
.solar figcaption { margin-top: 0.4rem; }
.solar .orbit { fill: none; stroke: rgba(255, 255, 255, 0.16); stroke-width: 1; }
.solar .sun { fill: #FDB813; }
.solar .sun-glow { fill: rgba(253, 184, 19, 0.25); }
.solar .planet { stroke: #0e1726; stroke-width: 1; }
.solar .earth-ring { fill: none; stroke-width: 1.5; }
.solar .planet-label { fill: #e2e9ed; font-size: 10px; font-family: var(--sans); paint-order: stroke; stroke: #0e1726; stroke-width: 3px; }
.planet-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.1rem; }
.planet-list li { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0.75rem; padding: 0.5rem 0; border-bottom: 1px solid var(--line); }
.planet-list .dot { width: 0.8rem; height: 0.8rem; border-radius: 50%; margin-top: 0.35rem; }
.planet-list p { margin: 0; }
.planet-list .here { color: var(--accent); font-size: 0.8rem; font-weight: 700; }

/* Más en la app */
.more-box { margin: 2.5rem 0 0; padding: 1.25rem 1.4rem; border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 0 var(--radius) var(--radius) 0; background: var(--surface); max-width: 46rem; }
.more-box h3 { margin: 0 0 0.3rem; font-size: 1.25rem; }
.more-box > p { margin: 0 0 0.75rem; }
.more-box .checklist { margin-bottom: 0.5rem; }